If the kinetic energy of a free electron doubles. Its deBroglie wavelength changes by the factor (1) $\frac{1}{2}$ (2) 2 (3) $\frac{1}{\sqrt{2}}$ (4) $\sqrt{2}$
If the kinetic energy of a free electron doubles. Its deBroglie wavelength changes by the factor\\
(1) $\frac{1}{2}$\\
(2) 2\\
(3) $\frac{1}{\sqrt{2}}$\\
(4) $\sqrt{2}$